2020
Encapsulation mechanisms and structural studies of GRM2 bacterial microcompartment particles
KALNINS, G., E.E. CESLE, J. JANSONS, J. LIEPINS, Anatolij FILIMONĚNKO et. al.Základní údaje
Originální název
Encapsulation mechanisms and structural studies of GRM2 bacterial microcompartment particles
Autoři
KALNINS, G., E.E. CESLE, J. JANSONS, J. LIEPINS, Anatolij FILIMONĚNKO (203 Česká republika, garant, domácí) a K. TARS
Vydání
Nature Communications, London, Nature Publishing Group, 2020, 2041-1723
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 14.919
Kód RIV
RIV/00216224:14740/20:00118308
Organizační jednotka
Středoevropský technologický institut
UT WoS
000512537400009
Klíčová slova anglicky
SHELL PROTEINS; CARBOXYSOME; ORGANELLES; 1 2-PROPANEDIOL; METABOLITE; INSIGHTS; VISUALIZATION; DEGRADATION; SEQUENCES; SOFTWARE
Změněno: 27. 10. 2024 14:10, Ing. Martina Blahová
Anotace
V originále
Bacterial microcompartments (BMCs) are prokaryotic organelles consisting of a protein shell and an encapsulated enzymatic core. BMCs are involved in several biochemical processes, such as choline, glycerol and ethanolamine degradation and carbon fixation. Since non-native enzymes can also be encapsulated in BMCs, an improved understanding of BMC shell assembly and encapsulation processes could be useful for synthetic biology applications. Here we report the isolation and recombinant expression of BMC structural genes from the Klebsiella pneumoniae GRM2 locus, the investigation of mechanisms behind encapsulation of the core enzymes, and the characterization of shell particles by cryo-EM. We conclude that the enzymatic core is encapsulated in a hierarchical manner and that the CutC choline lyase may play a secondary role as an adaptor protein. We also present a cryo-EM structure of a pT=4 quasi-symmetric icosahedral shell particle at 3.3 angstrom resolution, and demonstrate variability among the minor shell forms.
Návaznosti
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